John p



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J. F. TROW.

INDEX FOR BOOKS.

No. 341,782. Patented May 11, 1886.

INVENTOR i M WITNESSES ATTORNEYS.

Erica.

PATENT JOHN F. TROVV, OF NEW YORK, N. Y.

INDEX FOR BOOKS.

SPECIFICATION forming part of Letters Patent No. 341,782, dated May 11, 1886.

Application filed June 4, 1885. Serial No. 167,688.

To an whom it may concern Be it known that I, JOHN F. TROW, of the city, county, and State of New York, have invented a new and Improved Index for Books, of which the following is a full, clear, and exact description.

This invention, which is applicable to books of different kinds, including directories, encyclopedias, dictionaries, ledgers, and any other books, on or in which an index is necessary or desirable, consists in a novel arrangement of the index, as hereinafter described and claimed.

Reference is had to the accompanying drawing, which forms part of this spectification, and which represents a view in perspective of a book having the index arranged on the inner surface of the upper projecting or marginal end port-ion of the back between the side covers of the book in accordance with my invention.

A A indicate the side covers of the book; I) 1), its leaves, and 0 its rounded back, uniting the side covers and projecting beyond the marginal portions of theleaves,as usual. Upon the inner surface of the upper projecting or marginal end portion of said back, in full view of a person holding the book in his hand or looking toward the back thereof when the book is closed, I arrange, in one or more rows, the

(No model.)

alphabetical characters of the index, the same 0 running from left to right, and being spaced or disposed at such distances apart as will correspond to the number of leaves or pages to which said characters respectively refer. This arrangement of the index will not only make 5 the. index readily discernible, and so that a person handling the book will have no difficulty in opening it at the desired place corresponding with any particular alphabetical character, but the several alphabetical charo acters of the index may be readily printed or otherwise delineated upon the upper projecting end of the inner surface of the back, either before or after binding the book, and they will stand out or appear above the leaves, but in 45 close proximity to them.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- An indexed book having its index across it in direction of its thickness upon the inner 5o 

